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- Difference between ≈, ≃, and ≅ - Mathematics Stack Exchange
In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B
- notation - What does := mean? - Mathematics Stack Exchange
Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it I have seen variants of these used by people who predate widespread knowledge of computer programming It would be interesting to know the earliest uses of a special symbol for this (and what symbols were chosen) An
- Flipping an inequality sign when multiplying by a negative number
I came across a question that seemingly breaks the rule of flipping the sign when multiplying or dividing by a negative sign Here is the equation to be solved $$|-x| \\geq 6$$ The positive answer
- What does this double less than or equals to sign mean?
What does this "double less than or equals to" sign mean? Ask Question Asked 13 years, 11 months ago Modified 1 year, 1 month ago
- Do I have to sign the back of a check in order to deposit it?
Yes, you typically need to sign the back of a check in order to deposit it This signature is known as an endorsement and is required by most banks to verify the authenticity of the deposit
- Where should I sign the back of my debit card? - Answers
You should sign the back of your debit card on the signature strip to activate it and help prevent fraud
- What does plus mean at the start of a telephone number?
The plus sign at the start of a telephone number indicates the international dialing prefix It is used to signify that the following digits are part of an international telephone number, allowing
- After a bill is passed by congress how long does the . . . - Answers
If the President forgets to sign a bill within the ten day period fixed by the Constitution, it becomes law automatically as long as Congress is still in session by that date
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